document.write( "Question 1026258: A bicycle is traveling 32 miles per hour. The bicycle wheel is 27 inches in diameter. The back wheel chain sprocket is 3 inches in diameter. The pedal chain sprocket is 10 inches in diameter.\r
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document.write( "a)How many revolutions per second are the pedals turning?\r
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document.write( "b)What is the angular speed of the pedals? \n" );
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Algebra.Com's Answer #641536 by Alan3354(69443)![]() ![]() You can put this solution on YOUR website! A bicycle is traveling 32 miles per hour. The bicycle wheel is 27 inches in diameter. The back wheel chain sprocket is 3 inches in diameter. The pedal chain sprocket is 10 inches in diameter. \n" ); document.write( "=============\r \n" ); document.write( "\n" ); document.write( "a)How many revolutions per second are the pedals turning? \n" ); document.write( "Step 1, find the angular speed of the wheel. \n" ); document.write( "32 mi/hr = 32*22/15 ft/sec = 32*22*12/15 inch/sec \n" ); document.write( "= 563.2 inch/sec \n" ); document.write( "Each rev = 27*pi inches. \n" ); document.write( "563.2/(27pi) =~ 6.6397 rev/sec \n" ); document.write( "Pedals turn (3/10)*wheel \n" ); document.write( "1.9919 rev/sec\r \n" ); document.write( "\n" ); document.write( "====== \n" ); document.write( "b)What is the angular speed of the pedals? \n" ); document.write( "= 1.9919*2*pi \n" ); document.write( "=~ 12.5156 rad/sec \n" ); document.write( " |